Slide for multiple fasteners



Jan. 27, 1.942- M. WINTERHALTER 2,270,984

SLIDE FOR MULTIPLE FASTENERS Filed March 22, 1941 2 Sheets-Sheet 1 a a HW0 m 3 mu a g a 5 M m ll/ 7 I 5 H F WK FII'I 2 ma J0 F. w w a 7 B w l 395 a B H7 mm F 2 7 m r B 4 w V M H v WRS k w 4% I 5 9 Jan. 27, 1942. M.WINTERHALTER SLIDE FOR MULTIPLE FASTENERS 2 Sheets-Sheet 2 Filed March22, 1941 M rizln wuierkaliel't I Z9 M MWVWY I Pe ent d Jan- '2 9 2 SLmEFOR MULTIPLE FASTENERS Martin Winter-halter, Morcote-Castello, nearLugano, Switzerland Application March 22,1941, Serial No. 3 4,707

14 Claims.

I My invention, which relates to slide operated multiple fasteners andhas among its objects the provision of an improved handle and lockingmeans for the slide, will be best understood from the followingdescription'when read in thelight of the accompanying drawings ofseveral embodiments of the invention selected for illustrative purposes,while the scope of the invention will be more particularly pointed outin the appended claims.

In the drawings-.-

Fig. 1 is a plan of a multiple fastener;

Fig. 2'is a section on-the line 2-2 of Fig. 1, with parts in elevation;g v

Fig. 3 is a section, corresponding to Fig. 2, with the parts in adifferent operative position;

Figs. 4, 5, 6 and 7 are diagrams illustrating the operation of thehandle member of the slide of Figs. 1 and 2; i r

" Fig. 8 is a plan of a modified form of handle;

Fig. 9 shows a further modified form of handle with its parts in theposition assumed when re-.

moved fromassembled relation with the slide, thisfigure; correspondingto a section on the line "2 2 of Fig. 1 and 9-9 of Fig. 8, with parts inelevation;

body is provided on its exposed face with a rib l.

The rib illustrated isformed with a transverse opening having theopposite end walls 9 and il, an outer wall 13, and an inner wall lformed by the adjacent exposed face of the slide body.

For moving the slide body in each of opposite directions the same isprovided with a handle,

, preferably formed of a bent wire to provideopposite legs]? and E9. Theend portion of the leg i'l as shown, has a portion 28 extendingtransversely of the slide body through the opening in the rib if of theslide body; while the leg as has a corresponding portion 23 alsoextending through Fig. lO'is a fragment of the slide and assembledhandle according to Fig. 9, corresponding to a section on the line 2 -2of Fig. 1;

Fig. 11 is a section on the line ll-ll of Fig. 1;

Fig. 12 is a plan of a further modified form of slide and assembledfastener;

Figs. 13, 1'4, 15 and 16 are sections on the lines 13-13, l4--l4, I5-I5and IG-IS of Fig. 12;

Fig. 17 is a perspective of a detail employed in the constructionaccording to Figs. 12 to 16; and

Fig. 18 illustrates a still further modified form of slide and assembledfastener.

Referring to the drawings, which for convenience of illustration showsthe device on a much enlarged scale, the multiple fastener comprises aseries of spaced cooperating fastener elements l.of any usual orsuitable kind secured to the edge portions of the webs 3.

The slide body 5, which maybe of metal or molded-material correspondingto the material of the fastener elements, may, as usual, be moved m onedirection to iause the fastener elements on the two webs to engage so asto close the fastener, and may be moved in the opposite direction tocause the fastener elements to disengage so'as to open the fastener. Theslide body, like the fastener elements, may in its general aspects beof'any suitable or convenient construction.

As shown in Figs. 1 and 2, the improved slide this opening. The free endpart of the portion it of the leg ll, as illustrated, is bent to form aportion zoiextending toward the free end of a handle, this portion 25being bent 'to provide a laterally extending pin 27 adapted to projectthrough an opening 25 iri'the slide body so as to project into thespaces between adjacent fast'enerelements I, as shownin Fig. 2.

In the above construction the handle may be swung about the portions 2!and 23 thereof as a pivot to retract the'locking member constituted bythe pin 2l from engagement with the fas-' tener elements so that the.slide body may be moved in either of opposite directions to open orclose the fastener. It will be observed that when the parts arein theposition shown by Fig. 2 the slide body cannot move in fastener openingdirection as any tendency for it to do so will be prevented by the pin.As the pivot. for the handle constituted by the portions 2| and 23thereof is above the pin in the position of parts shown by Fig. 2 anytendency of the slide body to move in fastener opening direction willcause the pin to be urged into locking position when it is contacted bythe lowermost fastener element of the pair of fastener elements betweenwhich it lies. Accidental movement of the slide body in fastener closingdirection would not be prevented with the parts in the position shown byFig. 2, but it is not necessary ordinarily to prevent such movement. 1

Itwill be observed that the size of the opening in the rib I in whichthe handle is pivoted provides a certain amount oflost motion betweenthe handle and the sllde body longitudinally of the latter, whicharrangement is preferable to 1 -tion of the opening, as viewed in Fig.2, of such dimension transverse to the direction oi movement of theslide as will insure the pin being held in looking engagement with thefastener elements when the parts are in the position shown by Fig. 2.

Referring to the diagrams shown by Figs. 4, 5, 6 and 7, it will beobserved that when the handle is swung from its position shown by Fig.4, which corresponds to its position shown by Fig. 2, to that; shown byFig. 5, further swinging of the handle to position it to move thefastener in closing direction tends to be prevented by'the portion" 23of the handle contacting the outer wall l3 of the opening in the rib 1of the slide, the portion 2! of the handle under these conditionscontacting the walls 9 and I5 of the opening. However, further movementof the handle progressively into its position shown by Figs. 6 and '7will cause relative movement be-' tween the relatively resilient legs I!of the handie, this movement gradually increasing as the handle is movedfrom its position shown by Fig.

5 to those of Figs. 6 and '7. This relative movement between the legs ofthe handle, resulting in the leg l9 swinging a greater angular distancethan the leg I'I, causes the handle when released, say after thefastener is closed with the handle in the position shown by Fig. '7, tosnap back and move into its position shown by Fig. 4, in which positionthe slide lock is engaged.

The wire of which the handle is formed is preferably of such length asto permit the desired degree of relative resiliency between the legs,and is bent, as shown in Fig. 1, for example, to make it of convenientshape and size. This result maybe secured by bending the wire intovarious other shapes, for exampl that shown by Fig. 8, in which the legs3| and 33, corresponding to the legs i1 and I9 of thehandie of Fig. 1,have a sinuous shape. Preferably, but not necessarily, the two legs areconnected by a bridge piece 35 to prevent accidental spreading of thelegs. Preferably the bridge piece is loosely connected to the legs I 9,as clearly indicated in Fig. 11. As so constructed the legs may besprung sumciently to permit the handle shown by Fig. '1 ,or that shownby Fig. 8 may be formed to have the shape indicated by Fig. 9 before theportions 2| and 23 are inserted in the opening of the rib 1.' A shown inFig. 9,-

the two legs 31 and 39, corresponding to the legs I] and IQ of Fig. 1,are so formed that they are at an angle to each other before theportions 2| and 23 thereof are inserted in the opening in the rib 1 ofthe slide body. When inserted in that opening the parts assume theposition shown in Fig. 10, in which position the portion 23 of theportions 2| and 23 of the prefabricated handle to be inserted in theopening in the rib "I.

It will be observed in the modifications above described that the handlecan be moved from its position shown by Fig. 4 to that shown by Fig. 5before the relative movement between the relative resilient legs I 'Iand I9 occurs. In other words, when so constructed the normal. positionof the handle is a position in which the handle has considerable lostanguiar motion. The angle through which the handle may be turned fromits position shown in Fig. 2 before distortion occurs between thilegs tocause it to be urged back to its normal position may be varied byincreasing or decreasing the distance between the walls I3 and I5 of theopening, as will be obvious from Fig. 5, and in many instances it hasbeen found that satisfactory results will be secured when the portion 23of the handle does not contact the position shown in Fig. 2 about 30 to45 degrees 'or other angle considerably less than 90 detained in itsposition shown by Fig. 2, either the wall l3 until the handle has beenswung from its leg 31 yieldingly bears against the outer wall 4| to pullthe slide in fastener closing direction the portions 2| and 23 of thehandle will move to the upper end of the opcning, as shown in Fig. 10,and will coact with the wall of that opening, in exactly the sameway asthe handle according to Figs. 1 and 2 coacts with the walls of theopening shown in Figs. 5, 6 and 7, to cause the leg 31.0! the handle ofFig. 10 to swing a lesser distance than the leg 39 thereof and distortthe handle out of its position shownin Fig. 10, so that when theoperator releases the handle, say when it is in the positioncorresponding to Fig. 7, it will snap back into its position shown byFig. 10. v

The length ofthe wire forming the handle and the resiliency of thelatter may be much increased for a given length of handle by employingthe construction according to Figs. 12 to 18. In this construction thehinge portions 43 and 45 which extend through the opening 41 of the ribI both leave the same side of that opening to form the body of thehandle. As shown in Fig. 12, the wire at the left hand end of the endportion 43 is bent to form a leg portion 49 extending longitudinally ofthejaster so as to form part of the handle. The wire at the end of thislength 49 has a return bend 5|, 53, extending the leg to the oppositeside of the longitudinal axis of the slide body, the length 53 beingsymmetrical with the length 49. The length- 53 near the rib 1 is thisreverse bend the length 51 is bent back upon itself at a reverse bend 62to form a length 53 which terminates in the pin 21.

For closing the space between the reverse bends 54 and 62, and forkeeping them in alignment, a bridge piece 61 extends between the twosides of the handle. This bridge piece at one end is bent to form aportion 59 extending about the lengths of wires 49 and 59 at o ii sideof .the handle, as shown in Fig.-15, these wires being confined looselyby the bridge piece. At its opposite end the bridge piece is bent toformportions 1| extending into the spaces between the pairs of wires 5|, 63and 53, 55 so that the bridge piece will be maintained in' properposition longitu- 2,270,984 dinally of the handle, the portions Hloosely connecting the bridge piece to the lengths of wires 63 and 53.

As illustrated in Fig. 14, the opening 41 in the rib i may have itsouter surface 13 tapered in such way as to provide a larger opening in avertical direction at the left hand side of the rib as viewed in Figs.12 and 14 than at the opposite side. This acts to form a better pivot atthe ends of the wire portions 43 and 45 adjacent the pin 2'! so that abetter operation of the latter is secured, and when the handle is swunginto fastener closing direction causes the left hand end of the wireportion 45 to be distorted more than the right hand end as viewed inFig. 12, this causing a twisting as well as a lateral displacement ofthe wire length 59 and adding to the resiliency of the device.

, the otherwhen said handle is swung in locking means releasingdirection.

5. A slide according to claim 1 in which one of the relatively resilientparts of the handle directly carries the ,locking means.

6. A slide according to claim 1 in whichone of the relatively resilientparts of the handle directly carries the locking means, saidparts eachhaving a portion positioned transverse to the di- In making the deviceaccording to Fig. 12 the wire forming the handle may be bent to theshape shown, and the portion comprising the pin 21 and lengths Bland 63may be passed through the opening 41 with the handle turned at rightangles to the slide, thelengths of the other portions being such as toafford sufilcient resiliency to permit the necessary springing of theparts during this operation. After the handle is in place the bridgepiece 61 may beapplied.

The scheme of bending the wire forming the handle according to Fig. 12may be employed in other shapes of handle as, 'for example, that shownin Fig. 18, in which thereis formed in the opening between the wirelengths 15,; TI and 19, 8| an internal length of wire 83 bent to suchshape that the handle is so formed as to provide a preferred grippingmeans for engagement with the'fingers. 1

It will be understood that, within the scope of .the appended claims,wide deviations may be made from the forms of the invention describedwithout departing from the spirit of the invention.

I claim:

1. A slide for a multiple fastener having, in combination, a slide body,a handle for moving said body mounted thereon for swinging about an axistransverse to the direction of movement of said body, locking means forpreventing accidental fastener opening movement of said body operatedinto engaged and disengaged position when said handle is swung inopposite directions respectively, said handle comprising separaterelatively resilient parts, cooperating means on said handle and bodyfor forcing said parts to move relative to each other when said handleis swung to a position in which said locking means rection of movement.of the slide body and received in closely adjacent relation in anopening in the slide body, which opening also is posi tioned transverseto said direction whereby said portions of said parts serve as a pivotfor the handle, the walls of said opening cooperating said parts toswing a greater distance than the other when said handle is swung torelease the locking means.

7. A slide for a multiple fastener having, in combination, a slide body,a handle for moving said body mounted thereon at one side thereof forswinging about an axis transverse to the di rection of movement of saidbody, the handle having a position close to said body with the free endof the handle pointed in the direction of fastener opening movement ofsaid body, a slide lock carried by said handle, whichlock is in engagedcondition when said handle is in said position and is in releasedcondition when said handle is materially swung therefrom, said handlehaving a pair of relatively resilient legs positioned longitudinally ofsaid body when said handle is in said position, each leg having atransversely disposed portion received in a transversely disposed.openingin saidbody, said opening being so constructed as to cause thewalls thereof to .coact with said portions of-said legs therein forforcing one leg to swing a greater angular distance than the otherfwhensaid handle is swung to release said lock. r

8. A slide according to claim '7 inwhich the portions of the legs" ofthe handle within the opening in the slide body cause the handle to beis released for causing said handle to be urged resiliently retainedagainst movement when in the first mentioned position of .claim 7.

. 9. A slide according to claim 7 in which the legs are positioned atopposite sides of the longi-. tudinal' axis of the slide body.

10. A slide according to claim '7 in which the handle is formed of abent wire of which the legs constitute opposite end portions thereof,the slide lock being an integral part of one of said portions.

11. A slide according to claim 7 in which the handle is formed of a bentwire of which the legs constitute opposite end portions thereof, theslide lock being an integral part' of one of said portions,'the portionsof the legs within the opening in the slide body coacting with the wallsthereof to cause the handle to be resiliently retained against movementwhen in the first mentioned position of claim 7.

cooperating means on said handle and body force I theparts of saidhandle to move relative to each other only upon the handle being swungin look,-

ing means releasing direction a predetermined distance from the extremeend of its arc of travel. 4. A slide according to claim 1 in which thecooperating means on the handle and body force one of said parts toswing a greater distance than 12. A slide fora multiple fastener having,in combination, a slide body, a handle for moving said body mountedthereon at one side thereof for swinging about an axis transverse to thedirection of movement of said body, the handle having a position closeto said body-with the free end of the handle pointed in' the directionof fastener opening movement of said body, a slide lock carried by saidhandle, which look is in engaged condition when said handle is msaidposition and is in released condition when said handle is materiallyswung therefrom,s aid handle being formed of a wire bent to formresilient legs at one side of the longitudinal axis of said body withreturn bends extending them to a -reverse bend which joins them at theopposite side of said axis, said'legs at the first mentioned side ofsaid longitudinal axis each having a transversely disposed portionreceived in a transversely disposed opening in said body, which openingis so constructed as to cause the walls thereof to forc one of said legsto swing a greater angular distancethan the other when said handle isswung to release said slide lock, the transversely disposed portion ofone of said legs being bent to form a locking pin constituting saidslide lock.

combination, a slide body, a handle for moving said body mounted thereonat one side thereof for swinging about an axis transverse to thedirection of movement of said body, the handle having a position close12) said body with the free end of the handle pointed in the directionof fastener opening movement of said body, a slide lock carried by saidhandle, which look is in engaged condition when said handle is in saidposition and is in released condition when said handle is materiallyswung therefrom, said handle being formed of awire bent to formresilient legs at one side of the longitudinal axis of said body withreturn bends extending them to a reverse bend which joins them at theopposite side of said axis, said legs at the first mentioned side ofsaid longitudinal axis each having a transversely disposed portionreceived in a transversely disposed opening in said body, which openingis so constructed as to cause the walls thereof to force one said legsto swing a greater angular distance than the other when said handle isswung to release said slide lock, the transversely disposed portion ofone of said less at that side of said longitudinal axis to whichsaid'legs are exl 13. A slide for a multiple fastener having, inv

tendedhaving a reverse bend directed toward and terminating adjacent thefirst mentioned reversebend, said wire beyond the second mentionedreverse bend having a terminal portion forming a pin constituting saidslide lock.

14. A slide fora multiplefastener" having, in

combination,- a slide body, a handle for moving said body mountedthereon at one side thereof for swinging about an axis transverse to thedirection of movement or said body, the handle gaged condition when saidhandle is in said position and is in released condition when saidhandle, is materially swung therefrom, said handle being formed of awire bent to form resilient legs at one side of the longitudinal axis ofsaid body with return bends extending them to a reverse bend which joinsthem at the opposite side of said axis, said legs at-the first mentionedside of said longitudinal axis each having a transversely disposedportion received in a transversely disposed opening in said body, whichopening is so constructed as to cause the walls thereof to force one ofsaid legs to swing a greater angular distance than the other when saidhandle is swung to release said slide lock, the transversely disposedportion or one of said legs at that side of said longitudinal axis towhich said legs are extended having a reverse bend directed toward andterminating adjacent the first mentioned re,- verse bend, said wirebeyond the second mentioned reverse bend having a terminal portionforming a'pin constituting said slide lock, and a

